Bug 2525191 (CVE-2026-81523)

Summary: CVE-2026-81523 libmongocrypt: libmongocrypt: Information disclosure due to missing input validation
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in libmongocrypt. A missing input validation vulnerability in the automatic-encryption context setup allows a caller-supplied database identifier to be accepted without proper sanitization. This can lead to incorrect schema selection, potentially resulting in limited disclosure or modification of information within the application.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2526705, 2526706    
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Description OSIDB Bzimport 2026-08-27 20:14:58 UTC
A missing input-validation issue in MongoDB libmongocrypt's automatic-encryption context setup allows a caller-supplied database identifier to be accepted without sanitization. The resulting impact is limited to incorrect schema selection, which may lead to limited disclosure or modification of information handled by the application.